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Hausmann, A.E., Freire, M., Alfthan, S.A., Kuo, C.-Y., Linares, M., McMillan, O., Pardo-Diaz, C., Salazar, C., & Merrill, R.M. (2022) Does sexual conflict contribute to the evolution of novel warning patterns? BioRxiv doi:

– Butlin, R.K., Servedio, M., Smadja, C., Bank, C., Barton N.H., Flaxman S., Giraud, T., Hopkins, R., Larson, E., Maan, M., Meier, J.,  Merrill, R.M., Noor,  M., Ortiz‐Barrientos D., Qvarnström, A. (2021) Homage to Felsenstein 1981, or why are there so few/many species? Evolution 75: 978-988

Hausmann, A.E., Kuo, C.-Y., Freire, M., Rueda-M, N., Linares, M., Pardo-Diaz, C., Salazar, C., & Merrill, R.M. (2021) Light environment influences mating behaviours during the early stages of divergence in tropical butterflies. Proc Roy Soc B 288: 20210157

– Montgomery, S.H., Rossi, M., McMillan, O. & Merrill, R.M. (2021) Neural divergence and hybrid disruption between ecologically isolated Heliconius butterflies. PNAS 116: e2015102118

– Darragh, K., Outeau, A, Byers, K., Szezerbowski, D., Warren, I.A., Rastas, P., Pinharadnda, A.L., Davey, J.W., Garza,S., Almeada, D., Merrill, R.M., McMillan, W.O, Schulz, S, & Jiggins, C.D. (2021) A novel terpene synthase produces an anti-aphrodisiac pheromone in the butterfly Heliconius melpomene. PLOS Biology 19(1): e3001022

Rossi, M., Hausmann, A.E., Thurman, T.,  Montgomery, S.H., Papa, R., Jiggins, R.D., McMillan, O. & Merrill, R.M. (2020) Visual mate preference evolution during butterfly speciation is linked to neural processing genes. Nature Communications 11: 4763.

– Byers, K., Darragh, K., Garza,S., Abondano, D., Warren, I.A., Rastas, P., Pinharadnda, A.L., Davey, J.W., Garza,S., Almeada, D., Rastas, P.,  Merrill, R.M., McMillan, W.O, Schulz, S, & Jiggins, C.D. (2020) Clustering of loci controlling difference in chemical bouquet of sympatric Heliconius butterflies. Ecology & Evolution online early.

Darragh, K., Montejo-Kovacevich, G., Kozak, K.K., Morrison, C.R., Figueiredo, C.L.E., Ready, J.S., Salazar, C., Linares, M., Merrill, R.M., McMillan, W.O, Schulz, S, & Jiggins, C.D. (2020) Species specificity and interspecific variation in the chemical profiles of Heliconius butterflies across a large geographical range. Ecology and Evolution 10: 3895-3918.

– Mérot, C., Debat. V., Le Poul, Y., Merrill, R.M., Naisbit, R., Tholance, A., Jiggins, C.D. & Joron, M. (2020) Hybridisation and transgressive exploration of wing morphology in Heliconius butterflies. J. Evol. Biol 33: 942-956.

– Byers, K., Darragh, K., Musgrove, J., Abondano, D., Garza, S., Warren, I.A., Rastas, P., Kucka, M., Yingguang F.C., Merrill, R.M., Schulz, S, McMillan, W.O, & Jiggins, C.D. (2020) A major locus controls a biologically active pheromone component in Heliconius melpomene. Evolution 74: 349-364.

Darragh K., Byers, K., Merrill R.M., McMillan W.O., Schulz S., Jiggins C.D. (2019) Male pheromone composition depends on larval but not adult diet in Heliconius melpomene.  Ecological Entomology 44: 397-404.

Merrill R.M., Rastas P., Martin S.H., Melo, M.C., Barker S., Davey, J., McMillan W.O., Jiggins, C. (2019) Genetic dissection of assortative mating behavior. PLoS Biology 17: e2005902

Merrill R.M., Neggazi, S, Morrison, C., Crisp, R., McMillan, W.O. (2018) Experimental manipulation of Heliconius warning patterns reduces harassment of previously mated females. BioRxiv doi:

Darragh K., Vanjari S., Mann F., Gonzalez-Rojas M.F., Morrison C.R., Salazar C., Pardo-Diaz C., Merrill R.M., McMillan W.O., Schulz S., Jiggins C.D. (2017) Male sex pheromone components in Heliconius butterflies released by the androconia affect female choice. PeerJ 5:e3953

– Cuthill, I.C., Allen, W. L., Arbuckle, K., Caspers, B., … Merrill, al. (2017) The biology of color. Science: 357 eaan0221.

Davey, J., Barker, S. C, Rastas, P., Pinharanda, A., Martin, S.H., Durbin, R., W.O. McMillan, Merrill, R.M., & Jiggins, C. D. (2017). No evidence for maintenance of a sympatric Heliconius species barrier by chromosomal inversions. Evolution Letters1-3: 138–154

 Mérot, C., Salazar, C., Merrill, R.M., Jiggins, C.D. & Joron, M. (2017) What shapes the continuum of reproductive isolation? Lessons from Heliconius butterflies. Proc Roy Soc B. 284: 20170335

Montgomery, S.H. & Merrill, R.M. (2017) Divergence in brain composition during the early stages of ecological specialisation in Heliconius butterflies. J Evol Biol 30: 571-582

Nadeau, N., Pardo-Diaz, C., Whibley, A., Supple, M., Saenko, S., Wallbank, R., Wu, G., Maroja, L., Ferguson, L., Hanly, J., Hines, H., Salazar, C., Merrill, R.M., Dowling, A., ffrench-Constant, R., Llaurens, V., Joron, M., McMillan, W.O., Jiggins, C. (2016) A major gene controls mimicry and crypsis in butterflies and moths. Nature 534: 106-110

Davey, J.W., Chouteau, M., Barker, S.L., Maroja, L., Merrill, R. M., Baxter, S, Simpson, F., Joron, M., Mallet, J., Dasmahapatra, K. & Jiggins, C.D. (2016) Major improvements to the Heliconius melpomene genome assembly used to confirm 10 chromosome fusion events in 6 million years of butterfly evolution. G3 6: 695-708

montgomery_et_al-2016-the_journal_of_comparative_neurology copy.png Montgomery, S.H., Merrill, R.M. & Ott, S.W. (2016) Brain composition in Heliconius butterflies, post-eclosion growth and experience dependent neuropil plasticity. J Comp Neur 524: 1747-1769

Merrill, R.M., Dasmahapatra, K., Davey, J., Dell’Aglio, D., Hanly J.J, Huber B., Jiggins C.D., Joron, M., Kozak K., Llaurens V., Martin S.H., Montgomery S.H., Morris, J., Nadeau N.J., Pinharanda A.L., Rosser N., Thompson M.J., Vanjari, S., Wallbank R.W., Yu, Q. (2015) The diversification of Heliconius butterflies. What have we learned in 150 years? J Evol Biol 28: 1417-38

ece3.2014.4.issue-7.cover.jpg – Merrill, R.M., Chia, A., Nadeau, N. (2014) Divergent warning patterns contribute to assortative mating between incipient Heliconius species. Ecol & Evol 4: 911-917

Merrill, R.M., Naisbit, R.E., Mallet, J. & Jiggins C.D. (2013) Ecological and genetic factors influencing the transition between host-use strategies in sympatric Heliconius butterflies. J Evol Biol 26: 1959-1967

Van Dirk, R.E, Eising, C.E., Merrill, R.M., Karadas, F., Hatchwell, B. & Spottiswoode, C.N. (2012) Maternal effects in the highly sociable weaver, Philetairus socius, may exacerbate brood reduction and prepare offspring for a competitive social environment. Oecologia 171: 379-389

Merrill, R.M., Wallbank, R.W, Bull, V., Salazar, P., Mallet J., Stevens, M. & Jiggins C.D. (2012) Disruptive ecological selection on a mating cue. Proc Roy Soc B 279: 4907-4913

cover copy.png Merrill, R.M., Gompert, Z., Dembeck, L., Kronforst, M.R., McMillan, W.O. & Jiggins, C.D. (2011) Mate preference across the speciation continuum in a clade of mimetic butterflies Evolution 65:1489-1500

Merrill, R.M., van Schooten, B., Scott, J.A. & Jiggins, C.D. (2011) Pervasive genetic associations between traits causing reproductive isolation in Heliconius butterflies. Proc Roy Soc B 278: 511-518

Merrill, R.M., & Jiggins, C.D. (2009) Müllerian mimicry: sharing the load reduces the legwork. Curr Biol 19: R687-9

Merrill, R.M., Lewis, O, Gutiérrez D., Gutiérrez J. & Wilson, R.J (2008) Combined effects of climate and biotic interactions on the elevational range of a phytophagous insect. J Anim Ecol 77: 145-155

Seddon, N., Merrill, R.M., & Tobias, J. A. (2008) Sexually selected traits predict patterns of species richness in a diverse clade of Suboscine birds. Am Nat 171: 620-31